Improvement in corrugating circular metal plates



UNITED STATES.

PATENT OFFICE.

ROBERT B. HUGNIN, OF CLEVELAND, OHIO.

Specification forming part of Letters Patent No. 42,377, dated April 19,1864.

To all whom it may concern:

Be it -known that I, ROBERT B. HUGUNIN, of Cleveland, county ot'Cuyahoga, and State of Ohio, have invented a new machine for corrugatingcircular metal plates of any desired size, witi corrugations radiatingfrom the center; and l do hereby declare that the following is a full,ciear, and exact description ofthe same, reference being had to theaccompanying drawings, forming a part of this specification, in which-Figure l represents a plan view of my machine. Fig.2 is a sectional Viewof the frame, showing the cones removed, and represented in Fig. 3.

Similar letters of reference indicate corresponding parts in eachfigure.

To enable those skilled in the art to fully understand my invention, IWill proceedto describe its construction and operation.

A A are two cones ot' any suitable size or length, with groovedsurfaces, with either straight or curved grooves, for corrugatin gplates either with curved or straight corruga` tions; B B, two rodsconnected with and extending straight back from the cones to any desireddistance; O O, two plates upon which rests the boxes D D D D, which aresecurely fastened to said plates; E E E E, collars round the rods B B toprevent the cones working back while operating the machine 3 F F, gear-Wheels for turning and guiding the cones; G,

' crank for hand-machine; H H, temporary table upon which rests themachine.

The operation of the machine may be briey described as follows: Themetal to be corrugated is cnt to a circle ot' an y desired diameter, thehalt' of which shall not exceed the length ofthe cones. Theedges, ifdesired, may then be turned under, after which cut the circle (orplate)i'rom the outer edge to the center straight. Taking holdfot thecrank, place one edge ofthe cut or slit portion of the circle betweenthe cones, the center on the point, the outer edge on the base ofthe-cones; turn the crank, the plate will make the circuit and pass outat the other edge of the slit corrugated. Vhen an entire circle otcorrugations is required it will be necessary to add ou to the circlesuch portion of an additional circle as will equal what will be drawn ortaken up in the corru- 'gations y Having thus described my invention,what I claim, and Wish to secure by Letters Patent, is-

l. The arrangement of the cones A A, as and for the purposes hereinshown.

2. The arrangement and combination of the plates O O, gears F F, boxes DD D D, co1- purposes herein 4shown and described.

Witnesses: R. B. HUGUNIN Gro. TLBBi'rs, UHs. SEYLER.

lars E E E E, and cones A A, as and for the

